As was said earlier, I think your Tivo box is contributing to the delay in the way its resetting the signal during fast forward, rewind, etc. I only experience the locking delay when changing from HD to SD channels and vice versa on my HD cable box, and its never more than 2 seconds. I get no delays on my DVD or CD inputs, all of which are connected via optical. IMHO this minor and infrequent annoyance is greatly overshadowed by the sound and performance (and of course price) of the 950.